单选题 A client is prescribed Gentamycin (Garamycin) IV to treat infection. It is important to monitor the client for the development of which of the following side effects from the medication?
A. Ascites.
B. Confusion.
C. Ototoxicity.
D. Cardiac dysrhythmias.

【正确答案】 C
【答案解析】Ototoxicity is a serious side effect of gentamycin. Tinnitus and dizziness are common; irreversible deafness can develop if the onset of ototoxicity is not detected early. Gentamycin is also known to be nephrotoxic and hepatoxic.